TF2 Bosses

The first time you kill him, you get the Eye-Shaker hat and the Optical Contusion achievement.
After the boss's death, he opens a portal to an island containing a real Bombycon. By touching it, the player receives the Bombycon item and the "Dive into the Book" achievement.
Also, after death, the glazastus explodes and covers everyone with urine.

Unlike the foot rider and other bosses, he can fly, which puts him out of reach of melee weapons. He can shoot purple balls from his eyes, a direct hit deals 150 damage, which can kill a spy or scout.
He teleports every 10-15 seconds, and after teleporting, he leaves a portal to the afterlife that you can enter. If you exit from there, you'll return with critical attack bonuses, invulnerability, and other buffs for a while.
When he goes into a rage, he shoots 3 times faster and aims flawlessly, and a direct hit then deals 300 damage, which can now kill any mercenary.

Externally, he is a huge flying eyeball with a diameter of 3-4 meters covered with nerves and blood vessels. The iris is brown in color, and the pupil also serves as a vent from which he releases purple projectiles that deal 100% critical damage, and a direct hit kills. During a rage, his brown color changes to bright red, and the color of his skin becomes lighter.

Glazastus is the eye of the demolition man who became the new boss thanks to Merasmus.
In the past, when the demolition man was still little, he was hired to clean Merasmus's castle, where he was strictly forbidden to open the bombicon, but Bombicon managed to persuade him, and as a result, the bombicon entered his left eye. The demolition man, Merasmus, returned, yelled at the demolition man, and Magiky tore out his eye and hid it in his staff. After the demolition man woke up, there was nothing left in the place.
How did Glazastus even appear? He appeared during a fight between Merasmus and the soldier when they were neighbors. Merasmus, in a rage, summoned the eye, which increased its diameter to 3 by 4 meters, and as a result, one fight ended with the appearance of a new boss.

He is described as an uncontrollable mindless rage, he does not care who to attack, he attacks both teams, his behavior is completely instinctive, he marks the victim with a curse and will pursue his victim until the victim either dies or is saved.

Outwardly, he is a skeleton dressed in a black, torn cloak with a deathly purple glow on his hands, leather gloves and boots, and instead of a head, he has a rotten pumpkin head, a Jack-o'-lantern on his belt, and a buckle with a grinning skeleton with an axe.
He is about 3 meters tall and his weapon is an axe that can kill a mercenary with 2 hits.

The exact answer is unknown, but perhaps merasmus and all kinds of dark magic are involved.

The exact circumstances are unknown, but it is said that he was beheaded.

This guy is the very first boss in TF2. He appeared in TF2 back in 2010.
In life, his name was Silas Mann, a member of the Mann family, around which the entire story is built. His exact relationship was unknown, but it is assumed that he was Zephaniah Mann's brother and the uncle of Redmond and Blutarch. Along with Zephaniah, Silas was a co-owner of the Zephaniah Mann & Sons Armory.

Hale is a garish, cool Australian. He goes shirtless and wears a hat with crocodile teeth, and on his chest, a patch of hair represents Australia, and his crown, which he wears before every battle, is a sack... HEEEEEEALLL! He can't stand hippies, loves steaks and adventures and anything that involves risk.

Saxon Hale has superhuman strength, which he can even use to tear apart a Yeti.
Saxon Hale is a tough and durable ogre who can withstand a lot of damage and can fall from great heights without much consequence, he can also make great jumps and is insanely agile and can even break through walls.

It's written in his lore that he's so powerful and that he's in favor of the Australium that had such an effect on him, but otherwise he's an ordinary Australian man.

Saxon Hale is famous for fighting the Yeti, even wiping out its species. He fought man-eating sharks, harpooned, and killed his competitors almost honestly. His favorite hobby:
fight dangerous animals and generally go on crazy adventures.

According to the storyline, Saxon Hale lost the company and Grey Hale won the battle, and then Saxon's path was through prison, setting fire to the zoo, and trying to get his own back.

Hale has turned the company into a whole brand where the corporate culture is "Friday, fight gorillas" and the slogan "we sell products and participate in fights." He personally approves the craziest products and does not tolerate it when someone is dissatisfied with his products, and for the critic this ends very badly.

Saxon Hale is the only one in the Hale family who even managed to become the main one in Manko and his main motto is "if there is danger, I will jump in there!"

Merasmus was often in debt to companies and mafias from different countries, and he tried to get out of it with crazy inventions, like building a theme park to awaken the ancient God of the circus. Almost all of these plans go wrong and lead to another clash with mercenaries.

communication with the soldier:
Merasmus was once a soldier's neighbor. They shared a castle until Lidzhat started a pogrom there. Because of this, Merasmus lost his home. Since then, the soldier has become Merasmus's main irritant. Merasmus regularly causes trouble for the soldier during Halloween.
connection with demomen:
As a child, the demolitionist worked in Merasmus's castle as a cleaner in the library. Merasmus strictly forbade the demolitionist from opening the bombicon, but the demolitionist didn't listen, and for that reason, he lost an eye. Then, from this eye, another boss, Glazastus, appeared.

Teleportation: He regularly teleports around the map, making it difficult to hold fire on him.
Magical explosions and arson: He can set fire to and blow up mercenaries.
Melee: If the mercenary is too close, he can hit the mercenary with his staff.
Bombs from the Bombicon: the guy starts throwing bombs around the map, and during this, all attacks on him will become critical.
Bomb on the head: When teleporting, Bombicon randomly turns the player's head into a bomb. To prevent the player from exploding, they need to run to Merasmus and touch him, which will stun Merasmus and the player will receive temporary bonuses.
Merazmus himself has a lot of HP, he has approximately 33,750 health plus 2,500 for each player.

One of the Halloween bosses, he is a smug, lazy, and egocentric mage who considers himself a genius but often acts carelessly and often finds himself in ridiculous situations. His signature humor is built on high-flown speeches, absurd plans, and constant reproaches towards the soldier. Visually, he appears as a skinny, lanky wizard with an eccentric outfit, which makes other mercenaries joke that he is wearing a dress.